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European Radiology Experimental
Fig. 1 | European Radiology Experimental

Fig. 1

From: Phantom-based analysis of variations in automatic exposure control across three mammography systems: implications for radiation dose and image quality in mammography, DBT, and CEM

Fig. 1

Experimental setup for the study demonstrating a representative case with 45-mm polymethyl methacrylate thickness. The illustration depicts the phantom structure, the position of the 0.2 mm Al square, designated regions of interest (ROIs) for signal measurement (mean pixel value, MPV), and noise measurement (standard deviation, SD) within and around the aluminum detail, and formulas for calculating contrast-to-noise ratio (CNR), and figure-of-merit (FOM)

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